Study on interaction between soil and anchor chain with finite element method

IMR OpenIR

	Study on interaction between soil and anchor chain with finite element method
其他题名	Study on Interaction Between Soil and Anchor Chain with Finite Element Method
	Li Sa 1; Xu Baozhao 2; Wu Yunzhou 3; Li Zhonggang 4
	2016
发表期刊	CHINA OCEAN ENGINEERING
ISSN	0890-5487
卷号	30 期号:6 页码:942-953
摘要	With the development of offshore engineering, deeply embedded anchors are needed to be penetrated to appreciable depth and attached at the pad-eye. The interaction between anchor chain and soil is a very complex process and has not been thoroughly understood yet. In this paper, the finite element method (FEM) was used to study the interaction of soil-chain system. Results of the analysis show that when the attachment point is at a shallow depth, the load-development characteristics of the chain from FEM are in good agreement with that from the model tests and theoretical analysis. But with the depth increment, the results are different obviously in different methods. This phenomenon is resulted from a variety of reasons, and the plastic zone around the chain was studied to try finding the mechanism behind it. It could be seen that the plastic zone extended in different modes at different depths of attachment points. The interaction between the soil and anchor chain makes the load acting on the anchor decrease, but the soil disturbed surrounding the chain increases the anchor failure possibility. When the anchor bearing capacity is evaluated, these two factors should be considered properly at the same time.
其他摘要	With the development of offshore engineering, deeply embedded anchors are needed to be penetrated to appreciable depth and attached at the pad-eye. The interaction between anchor chain and soil is a very complex process and has not been thoroughly understood yet. In this paper, the finite element method(FEM) was used to study the interaction of soil-chain system. Results of the analysis show that when the attachment point is at a shallow depth, the load-development characteristics of the chain from FEM are in good agreement with that from the model tests and theoretical analysis. But with the depth increment, the results are different obviously in different methods. This phenomenon is resulted from a variety of reasons, and the plastic zone around the chain was studied to try finding the mechanism behind it. It could be seen that the plastic zone extended in different modes at different depths of attachment points. The interaction between the soil and anchor chain makes the load acting on the anchor decrease, but the soil disturbed surrounding the chain increases the anchor failure possibility. When the anchor bearing capacity is evaluated, these two factors should be considered properly at the same time.
关键词	CATENARY anchor chain clay interaction finite element the load-development characteristics
收录类别	CSCD
语种	英语
资助项目	[State Key Program of National Natural Science of China]
CSCD记录号	CSCD:5854562
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/156623
专题	中国科学院金属研究所
作者单位	1.天津大学 2.Dongjiang Construct & Dev Co Tianjin Port, Tianjin 300456, Peoples R China 3.中国科学院金属研究所 4.China Shipbldg Ind Corp, Beijing 100097, Peoples R China
推荐引用方式 GB/T 7714	Li Sa,Xu Baozhao,Wu Yunzhou,et al. Study on interaction between soil and anchor chain with finite element method[J]. CHINA OCEAN ENGINEERING,2016,30(6):942-953.
APA	Li Sa,Xu Baozhao,Wu Yunzhou,&Li Zhonggang.(2016).Study on interaction between soil and anchor chain with finite element method.CHINA OCEAN ENGINEERING,30(6),942-953.
MLA	Li Sa,et al."Study on interaction between soil and anchor chain with finite element method".CHINA OCEAN ENGINEERING 30.6(2016):942-953.